FreeCalypso > hg > freecalypso-tools
annotate lcdemu/process.c @ 343:940ab98efefd
top Makefile: uptools need libserial for atinterf
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Sun, 04 Feb 2018 07:58:04 +0000 |
parents | e7502631a0f9 |
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rev | line source |
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0
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1 /* |
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2 * Processing of LCD output (input to us) |
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3 */ |
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4 |
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5 #include <stdio.h> |
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6 #include <stdint.h> |
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7 #include <stdlib.h> |
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8 #include <ctype.h> |
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9 #include <string.h> |
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10 #include <strings.h> |
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11 #include <X11/Xlib.h> |
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12 #include <X11/Xresource.h> |
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13 #include <X11/Xutil.h> |
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14 #include "globals.h" |
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15 |
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16 #define MAX_WIDTH 176 |
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17 |
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18 static unsigned |
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19 hexdecode(str) |
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20 char *str; |
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21 { |
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22 unsigned accum = 0; |
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23 int i, c, n; |
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24 |
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25 for (i = 0; i < 4; i++) { |
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26 c = str[i]; |
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27 if (isdigit(c)) |
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28 n = c - '0'; |
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29 else if (isupper(c)) |
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30 n = c - 'A' + 10; |
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31 else |
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32 n = c - 'a' + 10; |
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33 accum <<= 4; |
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34 accum |= n; |
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Mychaela Falconia <falcon@freecalypso.org>
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35 } |
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parents:
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36 return(accum); |
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37 } |
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Mychaela Falconia <falcon@freecalypso.org>
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38 |
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Mychaela Falconia <falcon@freecalypso.org>
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39 process_input_line(line) |
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Mychaela Falconia <falcon@freecalypso.org>
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40 char *line; |
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Mychaela Falconia <falcon@freecalypso.org>
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41 { |
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Mychaela Falconia <falcon@freecalypso.org>
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42 int blitrow, blitcol, npix; |
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Mychaela Falconia <falcon@freecalypso.org>
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43 uint16_t pix16[MAX_WIDTH]; |
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Mychaela Falconia <falcon@freecalypso.org>
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44 char *cp; |
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Mychaela Falconia <falcon@freecalypso.org>
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45 XImage *xi; |
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46 |
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parents:
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47 for (cp = line; isspace(*cp); cp++) |
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48 ; |
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Mychaela Falconia <falcon@freecalypso.org>
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49 if (!isdigit(*cp)) { |
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Mychaela Falconia <falcon@freecalypso.org>
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50 inv: fprintf(stderr, "fc-lcdemu: invalid input line\n"); |
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Mychaela Falconia <falcon@freecalypso.org>
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51 exit(1); |
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52 } |
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53 blitrow = atoi(cp); |
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54 while (isdigit(*cp)) |
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55 cp++; |
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56 if (!isspace(*cp)) |
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57 goto inv; |
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58 while (isspace(*cp)) |
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59 cp++; |
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60 if (!isdigit(*cp)) |
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61 goto inv; |
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62 blitcol = atoi(cp); |
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63 while (isdigit(*cp)) |
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64 cp++; |
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65 if (!isspace(*cp)) |
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66 goto inv; |
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67 while (isspace(*cp)) |
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68 cp++; |
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69 if (!isxdigit(*cp)) |
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70 goto inv; |
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71 for (npix = 0; *cp; ) { |
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72 if (!isxdigit(cp[0]) || !isxdigit(cp[1]) || |
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73 !isxdigit(cp[2]) || !isxdigit(cp[3])) |
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74 goto inv; |
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75 if (npix >= MAX_WIDTH) { |
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76 fprintf(stderr, |
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77 "fc-lcdemu error: input line exceeds MAX_WIDTH of %d pixels\n", |
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78 MAX_WIDTH); |
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79 exit(1); |
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80 } |
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81 pix16[npix++] = hexdecode(cp); |
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82 cp += 4; |
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83 } |
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Mychaela Falconia <falcon@freecalypso.org>
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84 xi = convert_function(pix16, npix); |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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85 XPutImage(mydisplay, mainwindow, mainwingc, xi, 0, 0, blitcol, blitrow, |
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86 npix, 1); |
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87 XDestroyImage(xi); |
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parents:
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88 } |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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89 |
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90 input_on_stdin(inbuf, incount) |
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91 char *inbuf; |
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92 { |
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Mychaela Falconia <falcon@freecalypso.org>
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93 char *input_end = inbuf + incount; |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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94 static char linebuf[1024]; |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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95 static int linesz; |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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96 char *cp; |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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97 |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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98 for (cp = inbuf; cp < input_end; cp++) { |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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99 if (*cp == '\n') { |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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100 linebuf[linesz] = '\0'; |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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101 process_input_line(linebuf); |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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102 linesz = 0; |
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103 continue; |
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104 } |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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105 if (linesz < sizeof(linebuf) - 1) |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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106 linebuf[linesz++] = *cp; |
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e7502631a0f9
initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
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